<p>Each package in a Java project should include a <code>package-info.java</code> file. The purpose of this file is to document the Java package using javadoc and declare package annotations.</p>

<h2>Compliant Solution</h2>
<pre>
/**
* This package has non null parameters and is documented.
**/
@ParametersAreNonnullByDefault
package org.foo.bar;
</pre>
